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smp-server: reduce Prometheus and expiration DB load (#1872)

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* smp server: add prometheus scan indexes

* smp server: estimate queue count in metrics

* docs: add smp server db load report

* smp server: reduce msg_queues write load

* docs: document batch-2 fixes and operator actions
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sh
2026-09-19 09:02:04 +01:00
committed by GitHub
parent c6ef2876f1
commit 7056ae22cc
5 changed files with 367 additions and 13 deletions
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src/Simplex/Messaging/Server/MsgStore/Postgres.hs
+1 -2
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@@ -110,10 +110,9 @@ instance MsgStoreClass PostgresMsgStore where
expireOldMessages :: Bool -> PostgresMsgStore -> Int64 -> Int64 -> IO MessageStats
expireOldMessages _tty ms now ttl =
maybeFirstRow' newMessageStats toMessageStats $ withConnection st $ \db ->
DB.query db "CALL expire_old_messages(?,?,?,0,0,0)" (oldQueue, oldMsg, batchSize)
DB.query db "CALL expire_old_messages(?,?,0,0,0)" (oldMsg, batchSize)
where
st = dbStore $ queueStore_ ms
oldQueue = 0 :: Int64 -- expire all queues
oldMsg = now - ttl
batchSize = 10000 :: Int
toMessageStats (expiredMsgsCount, storedMsgsCount, storedQueues) =